Bearing.



sTA'Ins PATENT OFFICE.

lAUBREYT.'12:aooiaAnI.,for WInKINsBURG, ANn EDWINGQ TIDLUND, orPITTSBURGH, PENNSYLVANIA, AssIeNoRs To WEsTINGHoUsE ELEcTRIo ANDMANUFACTURING COMPANY, Av CORPORATION f or' rnNNsYLvANIA'. y f

`TojaZZ whom t may ,concern L .Y

Be it known that we, AUnnnYL. BRooMALL, a .citizen of theUnted States,anda resident of vvVilkinsbu'r, g', .inl the .county of Alle-A ghenyand-,State of Pennsylvania, andjEn- `WIN G. TIDLUND, a subjectof theKing of Swedenand a resident of Pittsburgh, in the county of Alleghenyand State of Pennsylf. vania, have invented .a new. and usefulVIinprovement inr` Bearings, of which the follow ,ing is a specification.y l

kur inventionrelates to motor structures,

and'ithas special refe-rence to bearing housn ings for railwaylmotorszof the split-frame type, and to means for securing suchhousvlngsin position,VA v Y One of t-heV objects ofour Invention Vis ytomanufactured with a-minimum amount of machine work. and the arrangementandlocation of parts'vof ,which .are such` that f the housing tothemotorfframe. i f Y Inl .the priorart, it` has, been, common .to providethe upper half ofthe motor frame with .a semicircular yend-"projeatingiange andA to employ tap bolts-that project through theflange and arethreaded into Ithe. heus.-

. Ing.

the lframe bolts, are allowed to become loose,

- severe vibration and jarsm'ay occurwhich result in.unduewearing ofthethreads, not only ofthe housingbolts, but of the tapped holes inthe`housings., Looseness in they iit and chattering ofthe partsthereforetake place, which Vnecessitates the replacemen-t of the housingboltsand. moreover, the lretapping or threading ofthe housing holes.

In other forms of construction heretofore employed, the fupperqhalf lofthe'motor frame :is not .only `provided. with a semi-circular flange.Vbut also with diametrically opposite projecting radial lianges adjacentto the split of. th'egframe,;whilethe housing itself embodies similaroppositely projecting radial arms or flanges which are adaptedzforengagement with the upper Viframe-radial flanges. Through-boltsarethensprovided to cooperate with these radial flanges for clamping thehousing and upper half of the frame together.

While this type of construction is satisd V*Specification of LettersPatent.

With this construction, however,-.if

' BEARING.

factory from an operative point of view, it is unnecessarily expensivein that it requires extremely accurate machine work; for instance, the`coperating faces of the radial flanges referred to and the vinnercylindrical surface of the frame must be carefully machined, and, incase of slight inaccuracies inv the work, a` good tight joint may be obvtained between the radial arms whiley the cooperating circular faces oftheframe and of thehousing may be slightly spaced apart, or

vice versa.

According to our present invention, we

' propose to overcome the difficulties and eX- pense of priorconstructions which have been discusscd4 and to provide a structureinwhich thel housing may be rigidlyy positionedliy through-bolts andwith a minimumv amount of machine work.

ln the accompanyingA drawing, Figure 1 is a view. partially in sectionand partially in end elevation` of a portion of a railway`.motor-constructed in accordance with our through-bolts Amay. bekutilized for securing .j

' 1 y a portion of the device shown in Fig. l, the ,section being; takenalongthe :line II-II `of Fig. 1. `f

invention; and Fig. 2 is a sectional view of Referringto Vthe drawing.ythe apparatus shown comprises a motor 1 having an upper frame member 2anda lower frame member 3, av housing 4 and aplurality of through-Themotor 1 is ofy the split-frame type, and the upper and lower halvesthereof may be of any well-knownconstruction, each loe-r ing providedwith cooperating lugs 6 and 7 located adjacent tothe split of the frame4for thevpurpose of cooperating -with suitableclamping bolts V8 employedfor securing f 1thetwohalves together. .The ends of the two-part framevare provided with correspondingly. located circular openings 10 vtoreceive the housings 4. The upper half `of theframe Q has a circular:outwardly projecting flange 12 adjacent to the edge of the opening 10which is provided with'bosses 13.

The housing 4, in general`,is of any common type of construction' and.is circular in form andI adapted to be disposed within the circularopening 10 ofthe/end of the mo- .tor frame and is clamped in position bymeans of the frame parts 2 and 3. A circular portion 14 constitutes apart of the housing 4 and is provided with a peripheraly Patented Oct.2, 1917. 1' Application inea oitober 9, 1914. seriarNo. s655843. Y i

annular recess 15 for receiving the inner edge of the-flange 12 of theupper frame member 2. Moreover, the portion 14 of the housing isprovided with a plurality of pockets 16 which serve to provide asubstantially circular outwardly projecting flange 17 for cooperativeengagement with the corresponding circular flange 12 of the frame member2, said flanges being concentrically related and adapted to fit tightly,the one within the other. The adjacent cooperating surfaces of theflanges 12 and 17, just referred to, are the only ones requiring machinework in manufacturing. Intermediate the pockets 16 ofthe housing 4 areribs 18, and the inner surface of the flange 17 is-provided withinwardly projecting bosses 20.

Assuming the housing 4 to be in position with respect to the motor frameparts 2 and 3, it is rigidly clamped to the upper frame member 2 bymeans of the through-bolts 5 which project radially through the flange12 of the frame member 2 and the coperating flange 17 of theA housing 4.The inner threaded ends of the bolts 5 are provided with nuts 22 whichare locked against turning by means of the ribs 18 and bosses 20. Theother ends of the bolts 5 have heads 23, as usual, by means of which thehousing 4 and frame member 2 may be drawn tightly together while thenuts 22 are locked in position.

We desire that only such limitations shall be imposed as are indicatedin the appended claims.

We claim as our invention:

1. In a dynamo-electric machine, the combination with a splitmagnetizable frame having circular end openings therein and circularouter end flanges, of removable bearing housings adapted to be seated insaid circular end openings and having corresponding circular outer endflanges, and a plurality of radially-disposed bolts projecting throughsaid corresponding flanges for rigidly securing said housings inposition.

2. In a split-frame motor having circular end openings` the combinationwith bearing limisiligs disposed in said openings and having outwardlyprojecting circular flanges, of corresponding circular flanges upon theupper half' of said motor frame, and a plurality of radially disposedbolts projecting entirely through said corresponding flanges forsecuring said housings to the upper half of the frame.

3. In a split-frame motor having a circlilar end opening, thecombination with a circular flange around the opening in the upper halfof the frame, of a circular bearing housing disposed in said ojeningland` having pockets in the upper part thereof, through-bolts projectingthrough sald circular flange and through the portion of the housingbetween its outer edge and said pockets, and nuts disposed in saidpockets and cooperating with said bolts for clamping said housingrigidly in position, said nuts being held against turning in saidpockets.

4. In a split-frame motor having a circular end openin the combinationwith a circular housing isposed in said opening, of a plurality ofthrough-bolts projecting radially through portions of said frame andsaid housings, andl nuts coperating therewith for clamping said housingin position.

5. The combination with a hollow frame having upper and lower halves,and provided with a circular end opening and an integral projectingflange partially surrounding said opening, of a circular member,

disposed within said opening and having a corresponding projectingflange adapted to fit within said first flange, and throughboltsprojecting through said flanges in a radial direction for securing saidmember to one half of said frame.

6. In a dynamo-electric machine, the combination with a split-framehaving a circular end opening, and an integral outwardly projectingmember adjacent to the edge of said opening, of a circular bearinghousing disposed within said opening, an integral outwardly projectingmember adjacent to the periphery of said housing and registering withsaid first projecting member, and radially disposed through-boltsprojecting through said registering members for clamp ing said housingto said frame.

7. In a dynamo-electric machine, the combination with a frame having anend opening, of a bearing-housing adapted to be received in said openingand a plurality of radially-disposed bolts adapted to secure saidhousing in place.

8. In a dynamo-electric machine, the combination with a split framehaving an end opening and a flange on the upper portion of the frameadjacent to said opening, of a bearing housing adapted to be received insaid opening and a plurality of radially-disposed bolts adapted tosecure said housing in place.

In testimony whereof, we have hereunto subscribed ournames this 7th dayof Oct.,

